Rika is an athletic wife whose youth was immersed in sports until she got married to her current husband. "Since I was a child, I went to a local aikido dojo, and at school I was always a member of the athletic clubs for track and field, tennis, and dance." However, after getting married, the COVID-19 pandemic affected her... "No, it's not just COVID. My husband is very controlling and doesn't let me do anything." She had sex with her husband, who was her boyfriend since her school days, almost every day until her child was born, but after giving birth, the sex decreased dramatically, as if she had become a different person. "If I can't move my body or have sex, I'll explode with stress and frustration." She gives in to her pent-up sexual desire and overflowing desire, and becomes addicted to sex with other men!